Improvement in hydrants



.l. V. S. MISKELLY.

Hydrants. 510.151,417. Patqnted May2 6,l874.

JOSEPH V. SJMISKELLY, OF BALTIMORE, MARYLAND.

IMPROVEMENT IN lHYDRANTS.

Specification forming part of Letters Patent No. l lAl 7, dated May 26,1874; application led Apr-i1 20, 1814.

To all whom it may concern:

Be it known that I, JOSEPH V. S. MIsKELLY, 0f Baltimore city, State ofMaryland, have invented a new and Improved Hydra-nt; and I do herebydeclare that the following is a full, clear, and exact description ot'the same, ret'- erence being had to the accompanying drawing, forming apart of this specification, in which the tigure is an elevation, partlyin section.

This invent-ion contemplates an improvement in the construction ot'hydrant-s used in connection with the water-mains ot' cities, orwherever a current ot water has sutiicient fall from its source to carryit up to the desired point of discharge.

These are usually open to two objections, one being that they receivedrainage-water, and the other that the waterremaining in the tube afteruse is liable to freeze. The novel means which I employ to overcome boththese difficulties will iirst be fully described, and then pointed outin the. claim.

A represents the pipe leading from main, and B the chamber into whichthe water is received therefrom. O is a valve that moves up to its seatU', and is held closely thereto by a spring, D, placed on the inside ofchamber or cylinder B, and pressed against the bottom of cylinder by anut, E, with one or more intermediate washers. F is the hydrantplunger,having an end disk, j', and proper iexible packing j". This plunger is atube, and extends up, forming under the ground no joint into whichsurface drainage can enter, butl jointed to the T-tube G, which receivesthe discharge-spout H and post I. On top ot' the latter is pivoted theend of hand-lever J,

that is fulcrumed in the slotted rigidly-fast-A ened bracket K. L is acap, whose liange, l, rits upon a corresponding` fla-nge, b, of chamberB, while between the two is made a watertight joint with suitablepacking. M is a guide-tube, which may be screwed into the cap L, or casttherewith. Between the upper end of this tube M and the T-tube G islocated a strong spring, O, resting preferably at each end against awasher, 0.

The operation is as follows: Willen pressure is broughtto bear upon thepost I, the latter, together with the spout H and plunger F, is carrieddown fard, overcoming the upward tension ot' spring O, and causing theplungerdisk f to strike the nut E. This overcomes the upward tension ot'the spring D, forces downwardly the valve O, and admits water intochamber B, the water then coursing, by the impulsion ot' its backpressure7 up through the plunger and out of the discharge-spout. As soonas the power exerted on the post- I by the lever or other means ceases,the spring O lit'ts the post, spout, and plunger, while the spring l)elevates the valve C to its seat.

The tube M serving as a guide-tube, and having no joint near the surfaceof the ground, all drainage is eii'ectually excluded therefrom. On theother hand, after the disk fhas moved up, a vacantspace is always leftin the chamber B, amply sufficient to receive all the water which isarrested in the plunger by the closing of valve O.

Having thus described my invention, what I claim as new islhecombination ore the chamber B, having downwardly-opening spring-valve OD, pistoned tube F j', serving both as plunger and water-conduit,guard-tube M, spring O, T-tube G, and post I, in the manner and for thepurpose specified.

.JOSEPH V. S. MISKELLY.

Iitnessesz Jas. M. T. GLnnsoN, SoLoN C. KEMON.

